1 /* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited 2 * 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 package org.springframework.security.userdetails; 17 18 import org.springframework.security.BadCredentialsException; 19 20 21 /** 22 * Thrown if an {@link UserDetailsService} implementation cannot locate a {@link User} by its username. 23 * 24 * @author Ben Alex 25 * @version $Id: UsernameNotFoundException.java 2217 2007-10-27 00:45:30Z luke_t $ 26 */ 27 public class UsernameNotFoundException extends BadCredentialsException { 28 //~ Constructors =================================================================================================== 29 30 /** 31 * Constructs a <code>UsernameNotFoundException</code> with the specified 32 * message. 33 * 34 * @param msg the detail message. 35 */ 36 public UsernameNotFoundException(String msg) { 37 super(msg); 38 } 39 40 /** 41 * Constructs a <code>UsernameNotFoundException</code>, making use of the <tt>extraInformation</tt> 42 * property of the superclass. 43 * 44 * @param msg the detail message 45 * @param extraInformation additional information such as the username. 46 */ 47 public UsernameNotFoundException(String msg, Object extraInformation) { 48 super(msg, extraInformation); 49 } 50 51 /** 52 * Constructs a <code>UsernameNotFoundException</code> with the specified 53 * message and root cause. 54 * 55 * @param msg the detail message. 56 * @param t root cause 57 */ 58 public UsernameNotFoundException(String msg, Throwable t) { 59 super(msg, t); 60 } 61 }